Discusses the purpose of mating behavior and territoriality.
Learn about the mating behaviors of elephant seals. Elephant seals have a dominant male watching over the harem.
Another example of an animal's mating behavior. Watch to know more about the courtship behavior of sage grouse lek (a type of bird).
An example of defending territory: bull elk battle in the middle of the Madison river in Yellowstone National Park.
Footage of these blue-footed birds demonstrating their mating dances.
Reviews the purpose of mating behavior and territoriality.
Learn about how some animals reproduce without sex - it may not be what you're thinking.
Learn how the trait of loyalty extends to canines outside your home.
Find out about pelagic octopuses, reproductive strategies, predator defenses and sexual dimorphism.